Portable pneumatic tethered submersible recovery system and method of use thereof

Abstract

The present application relates to a kind of portable pneumatic rope submersible marker recovery system and its use method, portable pneumatic rope submersible marker recovery system includes pneumatic rope launching device and rope recovery device;Pneumatic rope launching device is by rope launcher, sliding pivot base, fly wing type grab hook component, floating rope, rope box and telescopic pivot support component;Rope launcher is installed on sliding pivot base by telescopic pivot support, and rope launcher is used to launch fly wing type grab hook component, sliding pivot base is used to be fixed with ship body, floating rope is housed in rope box, and one end of floating rope is connected with fly wing type grab hook component;Rope recovery device includes recovery sliding base, rotating shaft and rope box;Rotating shaft is arranged at the top of sliding base.Portable pneumatic rope submersible marker recovery system can realize the fast multiple capture to marine submersible marker and other instruments and equipment in polar and other extreme sea environment and different ship body conditions, and it is convenient for rope recovery simultaneously.

Description

Technical Field

[0001] This invention relates to the field of marine mooring recovery technology, and in particular to a portable pneumatic rope mooring recovery system and its usage method. Background Technology

[0002] my country has been conducting polar expeditions for over 40 years, carrying out a series of surveys in key sea areas such as the Southern Ocean and the Arctic Ocean. These surveys cover physical oceanography, marine chemistry, marine geology, and marine biology. Submarine mooring is undoubtedly a crucial piece of equipment for long-term acquisition of underwater environmental data in polar marine scientific observation. The mooring mooring system consists of an acoustic release device, mooring lines, and multiple layers of sensors. By carrying sensors for temperature, salinity, and ocean currents, it enables long-term observation of marine environmental elements.

[0003] The extreme polar environments of the Southern and Arctic Oceans, including sea ice, strong winds, high waves, and frigid temperatures, pose significant challenges to mooring recovery. In polar expeditions, inflatable boats are commonly used for mooring recovery, but these are easily affected by weather and sea conditions. Deploying inflatable boats requires a large number of personnel and coordination from multiple departments on the research vessel, resulting in lengthy operations, significant safety risks, and vulnerability to weather and sea conditions, easily causing missed recovery windows. With the application of unmanned aerial vehicle (UAV) technology in polar expeditions, UAV-based mooring recovery methods have gradually emerged and are becoming increasingly mature. Practical experience shows that UAV-based mooring recovery methods have solved some of the problems associated with conventional inflatable boat recovery and improved efficiency, but some limiting factors and environmental conditions remain. Weather conditions are the primary limiting factor for UAV-based mooring recovery, and the distance to the mooring point also affects the recovery process; the research vessel needs to maintain a relatively close distance to the mooring point. Before UAV-based mooring recovery, a suitable takeoff and landing platform needs to be located, and extensive UAV testing and cable arrangement work is required. During the process of drone recovery of underwater moorings, the extreme low temperature environment in the polar regions has a significant impact on the drone's endurance, and the limited operating window makes the error tolerance of drone recovery of underwater moorings extremely low.

[0004] Existing technologies also employ pneumatic rope throwers for long-distance rope connection and manual throwing for short-distance rope connection. These methods utilize drifting ropes or self-contained buoyancy ropes, using a hook to connect the rope and retrieve the equipment. However, due to limitations in manual throwing distance, rough sea conditions, or complex underwater equipment cable situations, pneumatic rope throwers are typically used to achieve longer-distance stopping and launching of the hook to connect the rope. Patent document CN117208168A discloses an anti-detachment hook device suitable for both pneumatic rope throwers and manual throwing, applicable to the successful retrieval of underwater equipment under rough sea conditions. The device includes a hook head, an anti-detachment baffle, a guide extension rod, and a hook rod. The top of the hook rod has a rope-tying hole; three hook heads are welded to the top of the hook rod; a spring-loaded anti-detachment baffle is installed at the opening of each hook head; and the guide extension rod is welded to the end of each hook head, with the guide extension rod angled outwards. By using an anti-detachment hook in conjunction with a pneumatic rope thrower or by direct manual casting, it is possible to successfully connect floating ropes at long and short distances and retrieve underwater equipment connected by the ropes, even under harsh sea conditions.

[0005] However, current pneumatic rope throwers are usually fixed on the deck, which makes them not very portable, difficult to adjust, and hard to adapt to different ship hulls. In addition, the hook flight is unstable and the rope retrieval is inconvenient.

[0006] Therefore, there is an urgent need to invent a portable pneumatic rope buoy recovery system to facilitate the rapid and repeated retrieval of marine instruments and equipment such as buoys in extreme marine environments such as polar regions and under different ship hull conditions, while also facilitating rope retrieval, thus providing a new approach to polar buoy recovery work. Summary of the Invention

[0007] To address the problems existing in the prior art, this invention provides a portable pneumatic rope underwater buoy retrieval system and its usage method, which enables rapid and multiple retrieval of underwater buoys and other instruments and equipment in extreme marine environments such as polar regions and under different ship hull conditions, while facilitating rope retrieval.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A portable pneumatic rope buoy recovery system includes a pneumatic rope launching device and a rope recovery device. The pneumatic rope launching device consists of a rope launcher, a sliding pivot base, a wing-type grappling hook assembly, a floating rope, a rope box, and a telescopic pivot bracket. The rope launcher is mounted on the sliding pivot base via the telescopic pivot bracket and is used to launch the wing-type grappling hook assembly. The sliding pivot base is used to fix the system to the hull. The floating rope is stored in the rope box, and one end of the floating rope is connected to the wing-type grappling hook assembly. The rope recovery device includes a recovery sliding base, a rotating shaft, and a rope box. The shaft is located on top of the sliding base. The rotating shaft includes an annular retainer, a connecting pin, a roller, a roller bracket, a slide rail base, and a strong spring. The slide rail base is fixedly installed on top of the sliding base. The annular retainer is fixedly installed at one end of the slide rail base. The roller bracket is slidably installed on the slide rail base. A strong spring is installed between the annular retainer and the slide rail base. One end of the roller is fixedly connected to the roller bracket. The other end of the roller matches the shape of the annular retainer and is provided with a connecting pin. The annular retainer is provided with a pin hole that mates with the connecting pin to achieve quick locking between the roller and the annular retainer.

[0010] Furthermore, the sliding pivot base includes a launching sliding base, a cylindrical bracket, a fixed pulley, a spherical ball, a telescopic pulley, a conical locking tooth, and a threaded push rod; the launching sliding base is generally U-shaped, including a top plate and a left and right side plate located on the left and right sides of the bottom surface of the top plate, respectively; the cylindrical bracket is set on the upper surface of the top plate of the launching sliding base, and the cylindrical bracket is used to realize quick connection with the telescopic pivot bracket; the lower surface of the top plate is provided with spherical balls; the fixed pulley and the telescopic pulley are respectively set on the inner side of the left and right side plates, one of the left and right side plates is provided with a conical locking tooth, and the other of the left and right side plates is provided with a threaded push rod.

[0011] Furthermore, the telescopic pivot support consists of a telescopic rod, a telescopic knob, and a tension spring; the telescopic rod is used to adjust the height of the rope launcher, and the telescopic knob and tension spring are used for quick connection with the cylindrical bracket on the sliding pivot base.

[0012] Furthermore, a rotating clasp is provided at the top of the telescopic pivot bracket, and the rotating clasp is fitted and installed in close contact with the rope launcher.

[0013] Furthermore, the flying wing type grab hook assembly consists of an inserter, a flying wing plate, an inner grab hook, a hinge shaft, a tension spring, and an outer grab hook; the inserter is located at the tail of the flying wing type grab hook assembly; one end of the outer grab hook is fixedly connected to the head of the flying wing plate, and the other end is hinged to the inner grab hook through the hinge shaft, and a tension spring is provided between the outer grab hook and the inner grab hook.

[0014] Furthermore, two inner grabs are provided between the outer grab and the wing plate.

[0015] Furthermore, the rope box is designed with a magnetic attraction device, which allows it to be attached to the metal parts of the hull.

[0016] Furthermore, the roller is equipped with an anti-detachment rod to prevent the floating rope from falling off.

[0017] A method for using a portable pneumatic rope underwater buoy retrieval system includes the following steps:

[0018] Step 1: Based on the location of the underwater mooring and the distance to the vessel, select a suitable location to install the pneumatic rope launching device and rope retrieval device on the vessel, and quickly adjust the deployment location according to changes in the actual site conditions.

[0019] Step 2: Check the rope launcher and adjust it to the appropriate height using the telescopic pivot bracket;

[0020] Step 3: Select a suitable wing-type grappling hook assembly according to actual needs, tie the floating rope, and install the wing-type grappling hook assembly in the rope launcher;

[0021] Step four: Aim at the location of the underwater buoy and launch the wing-type grappling hook assembly using the pneumatic rope launcher.

[0022] Furthermore, during the process of grabbing the moored buoy, if the buoy's buoy line is successfully grabbed, the end of the buoy line is connected to the ship's winch for subsequent moored buoy retrieval. If the buoy line is not successfully grabbed, the backup wing-type grappling hook assembly with the buoy line attached is quickly used to grab it again, while the wing-type grappling hook assembly that failed to grab the moored buoy line is retrieved using the rope retrieval device.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] 1. The pneumatic rope launching device can adapt to extreme marine environments such as polar sea ice and strong winds, as well as different ship hull conditions;

[0025] 2. The pneumatic rope launching device enables continuous launching of the floating rope to quickly and repeatedly retrieve instruments and equipment such as underwater moorings. It can quickly respond to the underwater mooring recovery operation window in extreme polar marine environments, thereby improving operational efficiency.

[0026] 3. The pneumatic rope launching and retrieval devices make full use of the ship's hull characteristics, and the sliding design allows for convenient installation and movement in different ships and different working areas of the hull;

[0027] 4. The rotating shaft can be opened and closed via a telescopic design to facilitate the removal of the floating rope and grappling hook from the roller;

[0028] 5. The portable pneumatic rope underwater buoy recovery takes into account the convenience of actual operation and lightweight design. It has a simple structure, is easy to implement, and is highly operable on site, making it especially suitable for extreme marine environments such as polar regions. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the portable pneumatic rope underwater buoy recovery system of the present invention;

[0031] Figure 2 This is a schematic diagram of the pneumatic rope launching device of the present invention;

[0032] Figure 3 This is a schematic diagram of the telescopic pivot support structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the sliding pivot base structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the wing-type grab hook structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the rope retrieval device of the present invention;

[0036] Figure 7 This is a schematic diagram of the rotating shaft structure of the present invention.

[0037] Figure reference numerals:

[0038] 1 is a pneumatic rope launching device;

[0039] 11 is the rope launcher; 12 is the sliding pivot base; 13 is the wing-type grappling hook assembly; 14 is the floating rope; 15 is the rope box; 16 is the telescopic pivot bracket;

[0040] 111 is the telescopic rod; 112 is the telescopic knob; 113 is the tension spring;

[0041] 121 is the launching sliding base; 122 is the cylindrical bracket; 123 is the fixed pulley; 124 is the spherical ball; 125 is the telescopic pulley; 126 is the conical locking tooth; 127 is the threaded push rod;

[0042] 131 is the inserter; 132 is the wing plate; 133 is the inner gripper; 134 is the hinge shaft; 135 is the tension spring; 136 is the outer gripper.

[0043] 2 is a rope retrieval device;

[0044] 21 is the sliding base for recycling; 22 is the rotating shaft;

[0045] 221 is a ring-shaped retainer; 222 is a connecting pin; 223 is an anti-detachment rod; 224 is a roller; 225 is a roller bracket; 226 is a slide rail base; 226 is a high-strength spring. Detailed Implementation

[0046] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0047] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0049] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0050] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0051] Furthermore, the descriptions of orientations in this specification, such as up, down, left, right, front, back, inside, outside, longitudinal, transverse, vertical, and horizontal, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0052] This invention provides a portable pneumatic rope underwater buoy retrieval system and its usage method, aiming to solve the problem of rapid buoy retrieval in extreme polar marine environments. The system includes a pneumatic rope launching device and a rope retrieval device, capable of adapting to different ship conditions and extreme environments, enabling rapid and multiple buoy retrievals.

[0053] Example 1

[0054] like Figure 1 As shown, the portable pneumatic rope buoy recovery system includes a pneumatic rope launching device 1 and a rope recovery device 2. During use, the pneumatic rope launching device 1 and the rope recovery device 2 can be fixed at appropriate positions on the ship's side as needed.

[0055] like Figure 2-4 As shown, the pneumatic rope launching device 1 consists of a rope launcher 11, a sliding pivot base 12, a wing-type grappling hook assembly 13, a floating rope 14, a rope box 15, and a telescopic pivot bracket 16, and is used to launch a grappling hook with a floating rope attached. The rope launcher 11 is mounted on the sliding pivot base 12 via the telescopic pivot bracket 16. The rope launcher 11 is used to launch the wing-type grappling hook assembly 13. The sliding pivot base 12 is used to fix the grappling hook to the hull. The floating rope 14 is stored in the rope box 15, and one end of the floating rope 14 is connected to the wing-type grappling hook assembly 13.

[0056] The pneumatic rope launching device 1 can adapt to extreme marine environments such as polar sea ice and strong winds, as well as different ship hull conditions, to continuously launch floating ropes for rapid and repeated retrieval of instruments and equipment such as underwater moorings. The pneumatic rope launcher 11 is the power core of the entire system, using compressed air as its power source. The pneumatic launcher is equipped with an air pump that can quickly inflate and release air, propelling the wing-type grappling hook assembly to launch at a high initial velocity. The airtight design of the launcher ensures stable operation in the low-temperature polar environment.

[0057] The sliding pivot base 12 makes full use of the ship's characteristics and adopts a sliding launch base design. It can be flexibly and quickly installed in different working areas of the ship according to on-site needs and can be moved quickly. It can respond quickly to the underwater mooring recovery operation window in polar extreme sea environments and improve operational efficiency.

[0058] Specifically, the sliding pivot base 12 includes a launching sliding base 121, a cylindrical bracket 122, a fixed pulley 123, a spherical ball bearing 124, a telescopic pulley 125, a conical locking tooth 126, and a threaded push rod 127. The launching sliding base 121 is generally U-shaped, including a top plate and a left side plate and a right side plate located on the left and right sides of the bottom surface of the top plate, respectively.

[0059] A cylindrical bracket 122 is disposed on the upper surface of the top plate of the launch sliding base 121, and the cylindrical bracket 122 is used to achieve quick connection with the telescopic pivot bracket.

[0060] The lower surface of the top plate is provided with spherical balls 124; fixed pulleys 123 and telescopic pulleys 125 are respectively provided on the inner side of the left side plate and the right side plate, one of the left side plate and the right side plate is provided with a conical locking tooth 126, and the inner side of the other left side plate and the right side plate is provided with a threaded push rod 127.

[0061] The combination design of fixed pulley 123, ball bearing 124, and telescopic pulley 125 enables the sliding pivot base 12 to be moved conveniently in different working areas of different ships and hulls.

[0062] The combination of the tapered locking tooth 126 and the threaded push rod 127 enables convenient installation and fixation of the sliding pivot base 12 in different working areas of different ships and hulls. The tapered locking tooth 126 enhances the gripping force of the launching sliding base 121 on the hull, thereby improving its stability.

[0063] like Figure 3 As shown, the telescopic pivot bracket 16 consists of a telescopic rod 111, a telescopic knob 112, and a tension spring 113. The telescopic rod 111 can adjust the height of the rope launcher 11 as needed, and the telescopic knob 112 and tension spring 113 are used for quick connection with the cylindrical bracket 122 on the sliding pivot base 12.

[0064] Furthermore, a rotating ring is provided at the top of the telescopic pivot bracket 16. The rotating ring is fitted into the rope launcher 11 and is connected by screws and threaded holes to ensure the stability of the rope launcher during operation. The rotating ring can rotate at large angles in the left-right and up-down directions according to the position of the mooring buoy and the distance to the vessel, thereby expanding the operational adaptability and spatial range of the rope launcher.

[0065] like Figure 5As shown, the wing-type grappling hook assembly 13 consists of an inserter 131, a wing plate 132, an inner grappling hook 133, a hinge shaft 134, a tension spring 135, and an outer grappling hook 136. The inserter 131 is located at the tail of the wing-type grappling hook assembly 13 and is tightly connected to the rope launcher 11 via rubber threads, enhancing airtightness and stability. The wing plate 132 is generally triangular, with its apex forming the head of the wing-type grappling hook assembly 13. The design of the wing plate 132 can reduce the flight drag of the grappling hook assembly after deployment, thereby increasing the deployment distance of the grappling hook, and also ensure that the grappling hook maintains a vertically downward attitude in the water after entering the water.

[0066] One end of the outer grab hook 136 is fixedly connected to the head of the flying wing plate 132, and the other end is hinged to the inner grab hook 133 via the hinge shaft 134. A tension spring 135 is provided between the outer grab hook 136 and the inner grab hook 133. The inner grab hook 133 can rotate relative to the outer grab hook 136 via the hinge shaft 134, and under the action of the tension spring 135, its free end remains in contact with the flying wing plate 132.

[0067] When the wing-type grappling hook assembly 13 contacts the buoy's float line, the inner grappling hook 133 compresses the tension spring 135 and rotates relative to the outer grappling hook 136 under the force of the float line. This creates a gap between the inner grappling hook 133 and the wing plate 132. The float line passes through this gap and enters the space enclosed by the inner grappling hook 133, the outer grappling hook 136, and the wing plate 132. The inner grappling hook 133 then resets under the action of the tension spring 135 and re-engages with the wing plate 132. The design of the inner grappling hook 133, the outer grappling hook 136, and the tension spring 135 increases the probability of the grappling hook grabbing the float line and prevents the float line from detaching after grabbing.

[0068] Preferably, two inner hooks 133 are provided between the outer hook 136 and the wing plate 132 to further improve the stability of the hooks in grasping the floating rope.

[0069] Furthermore, the rope box 15 is designed with a magnetic attachment device, allowing it to adhere to the metal parts of the hull for convenient rope management. The box has multiple compartments for storing floating ropes of different lengths and types, as well as spare grappling hooks. The magnetic design at the bottom of the rope box ensures its stability on the hull, preventing slippage during rough terrain. Simultaneously, the magnetic attachment device allows the rope box 15 to quickly adjust its position according to the rotation angle and launch height of the rope launcher.

[0070] like Figure 6-7 As shown, the rope retrieval device 2 includes a retrieval sliding base 21, a rotating shaft 22, and a rope box 15, used to retrieve and organize the grappling hooks attached to the floating ropes.

[0071] The rope retrieval device 2 can independently retrieve the floating rope and grappling hook if the buoy is not successfully retrieved, and can quickly organize the floating rope and grappling hook in the rope box for easy use next time.

[0072] The structure of the recovery sliding base 21 is similar to that of the launch sliding base 12, except that there is no columnar bracket 122 on the top.

[0073] The rotating shaft 22 is located on top of the sliding base 21. The rotating shaft 22 includes an annular retainer 221, a connecting pin 222, a roller 224, a roller bracket 225, a slide rail base 226, and a strong spring 227. By setting the rotating shaft, the retrieval resistance of the floating rope and the grappling hook can be reduced.

[0074] The slide rail base 226 is fixedly mounted on the top of the slide base 21. An annular retainer 221 is fixedly mounted at one end of the slide rail base 226. A roller bracket 225 is slidably mounted on the slide rail base 226. A strong spring 227 is provided between the annular retainer 221 and the slide rail base 226. One end of the roller 224 is fixedly connected to the roller bracket 225, allowing the roller 224 to slide on the slide rail base 226. The other end of the roller 224 matches the shape of the annular retainer 221 and is provided with a connecting pin 222. The annular retainer 221 has a pin hole that mates with the connecting pin 222, enabling quick locking between the roller 224 and the annular retainer 221.

[0075] The roller 224 is connected to the annular retainer 221 via a connecting pin 222 to form a complete rotating shaft. When the connecting pin 222 is pulled out, external force can cause the roller 224 and roller bracket 225 to slide along the slide rail base 226 against the elastic force of the strong spring 227, thereby disengaging the roller 224 from the annular retainer 221, so that the floating rope and grappling hook can be removed from the roller.

[0076] Preferably, the roller 224 is provided with an anti-detachment rod 223 to prevent the floating rope from falling off.

[0077] Example 2

[0078] This application provides a portable pneumatic rope underwater buoy recovery method, which uses a portable pneumatic rope underwater buoy recovery system for recovery, and specifically includes the following steps:

[0079] Step 1: Based on the location of the underwater mooring and the distance to the vessel, select a suitable location to install the pneumatic rope launching device and rope retrieval device on the vessel, and quickly adjust the deployment location according to changes in the actual site conditions.

[0080] Step 2: Check the rope launcher and adjust it to the appropriate height using the telescopic pivot bracket;

[0081] Step 3: Select a suitable wing-type grappling hook assembly according to actual needs, tie the floating rope, and install the wing-type grappling hook assembly in the rope launcher;

[0082] Step four: Aim at the location of the underwater buoy and launch the wing-type grappling hook assembly using the pneumatic rope launcher.

[0083] During the process of grabbing the underwater buoy, if the buoy's buoy rope is successfully grabbed, the end of the buoy rope is connected to the ship's winch to carry out the subsequent work of recovering the underwater buoy.

[0084] If the buoy line is not successfully retrieved, quickly use the backup grappling hook assembly with the buoy line attached to it to try to retrieve it again. At the same time, use the rope retrieval device to retrieve the grappling hook assembly that failed to retrieve the buoy line.

[0085] The portable pneumatic rope underwater mooring recovery system of this invention is highly adaptable, with a flexible pneumatic rope launching device that can operate stably in extreme environments such as sea ice and strong winds in polar regions, and is adaptable to different ship hull conditions. Through a rapid launch and recovery mechanism, it can efficiently complete the mooring recovery task within a limited time window. At the same time, the system has a simple design, is easy to operate and maintain, and is particularly suitable for practical applications in complex environments such as polar regions.

[0086] In icy areas of the Southern or Arctic Oceans, this system can quickly respond to the need for mooring recovery. Even in windy and ice-covered conditions, the stable design of the sliding pivot base and the efficient gripping capability of the wing-type grappling hook ensure the successful completion of recovery missions. In rough seas, the system's efficient aerodynamic launch and stable cable recovery device allow for multiple recovery attempts in a short period, preventing missed recovery windows due to weather changes. Whether on research vessels or small boats, the flexible design of the sliding pivot base and rotating shaft allows the system to be quickly installed and adjusted on various hulls, adapting to different operating environments.

[0087] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A portable pneumatic rope underwater buoy recovery system, comprising a pneumatic rope launching device and a rope recovery device; Its features are: The pneumatic rope launching device consists of a rope launcher, a sliding pivot base, a wing-type grappling hook assembly, a floating rope, a rope box, and a telescopic pivot bracket. The rope launcher is mounted on the sliding pivot base via the telescopic pivot bracket. The rope launcher is used to launch the wing-type grappling hook assembly. The sliding pivot base is used to fix the hull to the boat. The floating rope is stored in the rope box, and one end of the floating rope is connected to the wing-type grappling hook assembly. The rope retrieval device includes a retrieval sliding base, a rotating shaft, and a rope box. The rotating shaft is located on top of the sliding base and includes a ring retainer, a connecting pin, a roller, a roller bracket, a slide rail base, and a strong spring. The slide rail base is fixedly installed on top of the sliding base, the ring retainer is fixedly installed at one end of the slide rail base, the roller bracket is slidably mounted on the slide rail base, and a strong spring is installed between the ring retainer and the slide rail base. One end of the roller is fixedly connected to the roller bracket, and the other end of the roller matches the shape of the ring retainer and is provided with a connecting pin. The ring retainer is provided with a pin hole that mates with the connecting pin to achieve quick locking between the roller and the ring retainer.

2. The portable pneumatic rope underwater buoy recovery system according to claim 1, characterized in that: The sliding pivot base includes a launching sliding base, a cylindrical bracket, a fixed pulley, a ball bearing, a telescopic pulley, a tapered locking tooth, and a threaded push rod; The launch sliding base is inverted U-shaped, including a top plate and a left and right side plate located on the left and right sides of the bottom surface of the top plate, respectively. A cylindrical bracket is set on the upper surface of the top plate of the launch sliding base, and the cylindrical bracket is used to realize quick connection with the telescopic pivot bracket. A ball bearing is provided on the lower surface of the top plate. Fixed pulleys and telescopic pulleys are respectively set on the inner side of the left and right side plates. One of the left and right side plates is provided with a conical locking tooth, and the other of the left and right side plates is provided with a threaded push rod on its inner side.

3. The portable pneumatic rope underwater buoy recovery system according to claim 1, characterized in that: The telescopic pivot support consists of a telescopic rod, a telescopic knob, and a tension spring; the telescopic rod is used to adjust the height of the rope launcher, and the telescopic knob and tension spring are used for quick connection to the cylindrical bracket on the sliding pivot base.

4. The portable pneumatic rope underwater buoy recovery system according to claim 3, characterized in that: The top of the telescopic pivot bracket is equipped with a rotating grip, which is fitted and installed in close contact with the rope launcher.

5. The portable pneumatic rope underwater buoy recovery system according to claim 1, characterized in that: The wing-type grab hook assembly consists of an inserter, a wing plate, an inner grab hook, a hinge shaft, a tension spring, and an outer grab hook; The inserter is located at the tail of the wing-type grab hook assembly; one end of the outer grab hook is fixedly connected to the head of the wing plate, and the other end is hinged to the inner grab hook via a hinge shaft. A tension spring is provided between the outer grab hook and the inner grab hook.

6. A portable pneumatic rope underwater buoy recovery system according to claim 5, characterized in that: Two inner grabs are installed between the outer grab and the wing plate.

7. The portable pneumatic rope underwater buoy recovery system according to claim 1, characterized in that: The rope box is equipped with a magnetic device that allows it to attach to the metal parts of the hull.

8. A portable pneumatic rope underwater buoy recovery system according to claim 1, characterized in that: The roller is equipped with an anti-detachment bar to prevent the floating rope from falling off.

9. A method of using the portable pneumatic rope underwater buoy retrieval system as described in claim 1, characterized in that: Includes the following steps: Step 1: Based on the location of the mooring buoy and the distance to the vessel, select a suitable location to install the pneumatic rope launching device and rope retrieval device on the vessel, and quickly adjust the deployment location according to changes in the actual site conditions. Step 2: Check the rope launcher and adjust it to the appropriate height using the telescopic pivot bracket; Step 3: Select a suitable wing-type grappling hook assembly according to actual needs, tie the floating rope, and install the wing-type grappling hook assembly in the rope launcher; Step four: Aim at the location of the underwater buoy and launch the wing-type grappling hook assembly using the pneumatic rope launcher.

10. A method of using the portable pneumatic rope underwater buoy retrieval system as described in claim 9, characterized in that: During the process of grabbing the moored buoy, if the buoy's buoy line is successfully grabbed, the end of the buoy line is connected to the ship's winch for subsequent moored buoy retrieval. If the buoy line is not successfully grabbed, the backup wing-type grappling hook assembly with the buoy line attached is quickly used to grab it again, while the wing-type grappling hook assembly that failed to grab the moored buoy line is retrieved using the rope retrieval device.

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